Turning-tool.



No. 638,880. Patented Dec. I2, I899.

w. A. PENDBY.

TURNING TOOL.

(Application filed Jan. 21, 1899.}

(N0 Model.)

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No. 638,880. Patented Dec. I2, 1899."

w. A. PENDRY.

TURNING TOOL.

(Application filed Jan. 21, 1899.)

@Tdttorney THE "cams pz'rcns co, vNorc-umo. WASHINBTO'N, n. q.

No. 638,880. Patented Dec. I2, I899.

- w. A. PENDRY.

TURNING TOOL.

- (Application filed Jan. 21, 1899.) (No Model.) 3 Sheets-Sheet 3.

WITNESSES. 1 IN VEJV'TUR.

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' 'llNITtEn STATES PATENT Trice.

\VILLIAM ALLEN PENDRY, OF DETROIT, MICHIGAN.

TURNING-TOOL.

SPECIFICATION forming part of Letters Patent No. 638,880, dated December12, 1899.

Application filed January 21, 1899. Serial No. 702,936. (No model.)

To all whom it may concern.-

Be it known that I, WILLIAM ALLEN PEN- DRY, a citizen of the UnitedStates, residing at Detroit, county of WVayne, State of Michigan, haveinvented a certain new and useful Improvement in Turning-Tools andMechanism for Operating the Same; and I declare the following to be afull, clear, and eXact description of the invention, such as will enableothers skilled in the art to which it appertains to make and use thesame, reference being had to the accompanying drawings, which form apart of this specification.

My invention relates to certain new and useful improvements in aturning-tool and mechanism connected therewith adapted for variouspurposes; and itconsists of the devices and appliances hereinafterdescribedand claimed,

7 and illustrated in the accompanying drawthe same herewith inconnection with certain portions of button machinery; but I would haveit definitely understood that I do not limit my invention to buttonmachinery alone nor to the special construction of button-machineryparts herewith shown, the particular button machinery disclosed herewithbeing shown in the drawings and described in the specification simply toillustrate the construction and the particular adaptation of myinvention, although, as above stated, the turning-tool and connectedmechanism may be employed within the scope of my invention in a widerrange of uses; but the illustrations and subjoined description willillustrate the construction and operation of the features moreparticularly forming the subject-matter of my present invention. Theturning-tool may be used, for example, with an ordinary turninglathe orwith screw cutting machinery or with automatic turret-lathes forreproducing duplicate parts among the various uses to which my inventionmay be applied.

Figure l of the drawings is a vertical section showing parts of abutton-machine, showing features of my invention in elevation. Fig. 2 isaside elevation showing, on an enlarged scale, certain features of myimproved cutting mechanism. Fig. 3 is a View in section on the line 3 3,Fig. 2. Fig. 4 is a detail View of one of the cutters in plan. Fig. 5 isa view in section on the line 5 5, Fig. 3. Fig. 6 is a View in sectionon the line 6 6, Fig. 5, showing the inside cylinder in elevation. Fig.'7 is a view in elevation showing the bracket or arm carrying the shaftof the grindingwheel.

The numerals 1 and 1" show turning-tools embodied in myinvention,twosuch tools 1 and 1 being shown, that number being preferably employed inmy improved turning mechanism, although I do not limit myself to anygiven number of turning-tools that may be employed. The turning-toolsare mounted upon acorresponding shaft (indicated at 2 and 2%) The tool 1is shown in the accompanying drawings in operation, while the tool 1 isshown out of operation. The shafts 2 2 are provided with a worm-gear 33, operated by corresponding worms 4 4 upon a shaft 5. Upon the shaft 5is an additional worm-gear 6, meshing with a worm 7 upon a shaft 8, uponwhich is mounted a worm-gear D, meshing with a worm 10 upon a shaft 11.The shafts hereinbefore mentioned, with their gearing, are mounted in arotatable cylinder 12. The rotatable cylinder 12 is preferablyconstructed with an intermediate cylinder-body 13,1":ormed with a web ordiaphragm 14 with heads 15 and 16 and with a toothed cylinder 17,forming a gear by which the complete cylinder is rotated. The variousparts of the cylinder, it will be understood, may be bolted together inany suitable manner, as indicated at 18. A non-rotatable cylinder 19 ismounted upon a slide 20, having a reciprocatory movement, the cylinder19 inclosing the periphery of the rotatable cylinder 12, the lattercylinder effectually excluding dust and dirt from the gears therewithin.

The cylinder 12 may be rotated in any suitable manner, as by a gear 21,meshing with a gear 22 upon a stud 23, which may also be which may be asquared shaft engaged therewith, the shaft 28 being driven from anysuitable source of power. The gear 21 is mounted ICO upon a stud 29,carried by a bracket 30 upon the carriage or slide 20.

The bed A is provided with ways 31, upon which the slide 20reciprocates. The slide 20 may be reciprocated in any suitable manner.Upon the shaft 11 is a star-gear 32. Upon the outer cylinder 19 isastriking-pin 33, one or more such pins being employed, as may bedesired. It will be evident that as the inner cylinder 12 is rotated thestar-gear 32, striking against the pin or pins 33, would be rotatedthereby, causing a corresponding rotation of the worm-gears hereinbeforementioned and a corresponding rotation of the turning-tools 1 1 Theturning tool or tools may have any desired conformation on the outerperiphery thereof corresponding to the form desired to be produced uponthe work thereby, as upon the surface of a button, for example.

The turning-tool is constructed primarily of annular form and is thenprovided with a gap, (indicated at 34,) of anydesired form to form acutting edge. It is evident that a turning-tool so constructed may bereadily ground or sharpened Without disturbing the conformation of thecutting edge.

My invention, as already observed, contemplates the mounting of such atool upon a rotatable shaft Within a rotatable cylinder and by which theposition of the tools may be made interchangeable, one turning-toolbeing in working position While the other turning-tool is in a positionto be sharpened or ground. My invention further contemplates means bywhich the turning-tools maybe automatically ground when out of operationor working position. By making the shafts of the turningtools revolublethe tools themselves may be 4o\given a proper rotation to compensate forthe bracket 37.

grinding away of the cutting-face thereof. My invention contemplates tothis end also the provision of a suitably-mounted wheel 35, which may bemounted upon a shaft36,driven from anysuitable source of power. Theshaft 36 is preferably mounted in a movable arm or This bracket has ajointed or hinged engagement upon a post 38, which may be provided withan adjusting-nut 39 upon said post by which the bracket 37 may beadjusted vertically, as may be required.

"WVhen it is desired to move the grindingwheel out of the way of one ofthe turningtools in order to shift the posit-ion of the turning-tool,the bracket 37 may be swung over intoinoperativeposition. Thegrinding-wheel may be thrown out of operative position in any desiredmanner. As shown, the outer case19 is provided with a spur40, which whenthe outer case is reciprocated strikes against the bracket and causes itto swing outward upon its post 38.

The bed A of the table may be constructed with an arc-shaped slot 41,through which the shaft 36, carrying the grinding-wheel, passes,together with a corresponding portion of the bracket 37. A spring 42 mayserve to keep the bracket and the grinding-wheel in their normalposition. On the stationary cylinder 19 is a spur 43,'against which thebracket 37 will strike when in normal position to prevent thegrinding-wheel from making too great a depth of cut in the turning-tool.Any suitable means, however, may be employed to hold the grinding-wheelin proper operative position.

Any desired means may be employed to reciprocate the outer cylinder 19.Those shown in the accompanying drawings consist, essentially, of anoscillatory shaft 44, said shaft being oscillated by any suitable means.To

this shaft is engaged a crank-arm 45, at

tached to a post 46, movably engaged with the slide 20. Anadjusting-screw 47 serves to adjust the position of the post 46. Afterthe adjustment by means of a tightening-nut 48 the post 46 maybesecurely held in ad justed position. The slide 20 is provided with anelongated slot 49 to permit the adjustment of said post.

To hold the inner cylinder 12, with its outters, firmly in operativepositionwhile agiven tool is making its cut, as shown in the drawings, Iprovide a reciprooatory bolt 50, normally entering a socket 51 in thehead of the cylinder 12, as indicated more particularly in dotted linesin Fig. 3. The outer cylinder 19 is provided with a sleeve-bearing 52 tocarry the bolt 50. A bell-crank 53, fulcrumed, as at 54 to the slidingcarriage 20, is connected with the bolt 50, the bearing 52 beingconstructed with an elongated slot 55 to permit the operation of thebell-crank in connection with said bolt. Upon "the bed A is engaged astationary bracket 56, constructed with a cam-groove 57. The lower armof the bellcrank 53 is provided with a roller 58, riding in the cam-slot57. It will be seen that as the cylinder 19 reciprocates in onedirection the roller 58, rising in the cam-slot 57, will throw outwardthe upper end of the bell-crank, retracting the-bolt 50, releasing'theinner cylinder, and permitting its rotation. The re verse movement ofthe cylinder 19 will restore the bolt 50 into locked position. i

The outer cylinder 19 is preferably slitted and provided with ears,(indicated at 59,) through which is passed a bolt for tightening theouter-cylinder upon the inner cylinder. The cylinder 19 has a movableengagement upon the slide 20 in a direction transverse to thereciprocation of the said slide to adjust the turning-tools to the workwith greater accuracy. The slide 20 may to this end be provided with aguide 61 and with a snug 62. The cylinder 19 carries adjustingscrews 63,impinging against opposite sides of the snug 62, by which means theposition of the cylinder 19 may be very carefully adjusted upon theslide.

M denotes any suitable rotatable chuck to carry the work. As my present"invention does not contemplate any specific construction of the chuck,it will be unnecessary to ICC IIO

esasso further describe the same, inasmuch as a chuck corresponding tothe chuck shown in Patent No. 581,830, dated May at, 1897, may beemployed or any other suitable chuck for carrying the work required tobe done.

While I do not limit myself to any special means of operating the partshereinbefore described as applied to a button-making machine, thevarious features embodied in my said patent may be employed in theturningtool and related mechanism as applied to a button-making machine.To this end, as shown in Fig. 1 more particularly, A is the base of abutton-making machine, provided with a spider A, a support A and the bedA A is the case of such a machine, and A the top or covering. 0 is ashaft provided with a gear 0 L is a rotatable turret carrying the chuckor chucks M. A is a gear mounted upon the arbor of the rotatable turret.The turret is driven by the gear 0 through the gears P and P on theshaft P, said shaft carrying a disk P, provided with a spur or arm P,which actuates a disk or number plate N upon the hub of the gear A Thegear A drives a pinion a upon the shaft 28. The shaft 28 is providedwith the gear 25, already described. 0 is a gear upon the shaft 0,meshing with a pinion 64 upon a shaft 65, from which latter shaft isdriven the chuck M. Upon a shaft similar to 65, but upon another plane,is a gear 66, meshing with a pinion 67 upon a shaft 68, provided with apulley 69, belted with a pulley 70 upon the shaft carrying theemerywheel, already described. A gear 71 upon the shaft 72 meshes with agear P The shaft 72 carries a cam 73, which operates the wiper 74,actuating the shaft 44, already described.

When the turning-tool and its immediatelyconnected mechanism is appliedto a turninglathe or to other purposes than for use in a button-makingmachine, it will be understood that the various parts of the novelmechanism hereinabove described will be driven otherwise and by anysuitable means.

The operation of the mechanism constituting my present invention is asfollows: The turning-tool in working position is non-rotatable whileperforming its work, the chuck carrying the work being rotatable. At thesame time the reciprocatory slide is advancing the turning-tool towardthe work by the mechanism already described. When the work isaccomplished, the reciprocatory slide is retracted, carrying theturning-tool away from the work, and at the same time the grinding-wheelis swung out of operative position, as above set forth. The lockingmechanism for holding the inner cylinder in locked position while thetool is at work is also at the same time retracted to permit therotation of the inner cylinder. The rotatable turret L is then given arotary movement sufficient to carry the work already operated upon tothe next step and to bring an adjacent chuck into working position. Therotation of the turret rotates the inner cylinder by the means alreadydescribed,carrying the tool that hasj u'st done its work into positionfor grinding and carrying the tool that has just been ground intoworking position ready for the neXt operation. A partial rotation hasalso been given to both turning-tools to compensate for the wear ingrinding. The locking mechan ism again locks the inner cylinder inworking position by the advancing of the reciprocatory slide, carryingthe tool to the work.

The mechanism may be advanced to carry the tool to the work when used onan ordinary lathe by hand or other means. The chuck may also only have arotatable movement within the scope of my invention. In an ordinarylathe the grinding-wheel may also be operated in any suitable manner.

I desire that the grinding-tool shall be doing its work while thereciprocatory mechanism is advancing to the work in order that thegrinding-wheel may have longer effect upon the turning-tool. To this endthe grinding-wheel is shifted out of Working position at or near thelimit of the retracting movement of the reciprocatory mechanism, whilethe grinding-wheel is restored to working position again when thereciprocatory mechanism begins to advance toward the work. To this endthe spur 40 is arranged to strike the arm or bracket 37 toward the limitof the retracting movement of the reciprocatory mechanism. The releaseof the spur 40 from said bracket when the reciprocatory mechanismadvances will of course permit the grinding-wheel being instantlyrestored to working position.

What I claim as my invention is 1. A sharpening device, a turning-toolstationary in working position, a rotatable shaft carrying said tool,and means to partially rotate said shaft to compensate for the wear insharpening the tool, substantially as described.

2. An annular turning-tool stationary in Working position, a shaftcarrying said tool, and a rotatable device carrying said shaft, saidturning-tool rotatable transversely of the length of said shaft,substantially as described.

3. A turning-tool, a rotatable shaft carry-' ing said tool, and arotatable device carrying said shaft, said tool stationary in workingposition, substantially as described.

4. A rotatable device, a turning-tool stationary in working position, ashaft eccentrically mounted upon said device and carrying said tool, anda chuck arranged at right angles to said shaft, substantially asdescribed.

5. A rotatable device, a sharpening device, a turning-tool, a shaftcarrying said tool mounted upon said rotatable device, and means to givea partial rotation to said shaft, substantially as and for the purposedescribed.

6. A rotatable cylinder, a turning-tool, a shaft carrying said toolmounted in said cylinder, and mechanism housed within the cylinder andactuated thereby to give a partial rotation to said shaft, substantiallyas and for the purpose described.

7. A rotatable device, a turningtool, a shaft mounted in said devicecarrying said tool at right angles thereto, and means to lock saiddevice in a Working position, substantially as described.

8. A rotatable device, a turning -tool, a shaft mounted in said devicecarrying said tool, means to lock said device in working position, andmeans to give to said shaft a partial rotation, substantially asdescribed.

9. A rotatable device, a turning-tool, a shaft mounted in said devicecarrying said tool, means to lock said device in working position, andmeans to give to said shaft a partial rotation, and means to reciprocatesaid device, substantially as described.

10. A rotatable device,a turning-tool stationaryin operation, a shaftmounted in said device carrying said [001, means to lock said device ina working position, and means to automatically rotate said device,substantially as described.

11. A rotatable device, an annular turningtool constructed with acutting edge at its periphery, a shaft carrying said tool mounted insaid device, means to automatically rotate said device, and means toautomatically give to said shaft a partial rotation, substantially asdescribed.

12. A rotatable device,a turning-tool stationary in operation, a shaftcarrying said tool mounted in said device, means to give to said toolastep-by-step partial rotation, and means to automatically sharpen saidtool, substantially as described.

13. A turning-tool, means to carry said tool from a working position toa non-working position and to return the tool to working position, and asharpening device to sharpen the tool when in a non-working position,said tool being stationary when in working position, substantially asdescribed.

14. A turning-tool stationary in operation, means to carry said toolfrom a working position to a non-working position and to return the toolto working position, a sharpening device to sharpen the tool when in anonworking position, and additional means to move the tool toward andfrom the work, substantially as described.

15. Plural turning-tools, means to carry said tools from a workingposition to a nonworking position and to alternately return the tools toWorking position, a sharpening device to sharpen said tools when in anonworking position, and means to shift said sharpening device towardand from a working position, substantially as described.

16. A turning-tool, a shaft to carry said tool, a rotatable device tocarry said shaft and the turning-tool from a working position to anonworking position, mechanism to reciprocate said device, and means toturn said shaft upon the reciprocation of said device, substantially asdescribed.

17 A turning-tool, a shaft to carry said tool, a rotatable device tocarry said shaft and its tool from a working position to a non-workingposition, means to reciprocate said device, means to turn said shaftupon the reciprocation of said device, and means to adjust saidreciprocatory mechanism at right angles to the line of itsreciprocation, substantially as described.

18. Multiple turning tools, a sharpening device, and means tointerchange the position of said tools to bring said tools consecutivelyinto position to be sharpened by said device and to return said toolsconsecutively to working position, said tools being stationary when inworking position, substantially as described.

19. Multiple turning-tools, a shaft carrying each of said tools, meansto interchange the position of said tools, and mechanism to give apartial rotation to each of said shafts, substantially as described.

20. Multiple turning-tools stationary in operation, a shaft carryingeach of said tools, and a rotatable device carrying said shafts,substantially as described.

21. Multiple turning-tools stationary in operation, a shaft carryingeach of said tools, a device carrying said shafts, and means to give apartial rotation to said device, substantially as described.

22. A rotatable device, multiple turning tools stationary in operation,and shafts eccentrically mounted upon said device carrying said tools,substantially as described.

23. Aturning-tool stationary in operation, a device to carry said toolfrom a working position to a non-working position and to return the toolto working position, means to reciprocate said device, and means torotate said shaft and its tool when out of working position,substantially as described.

24. A rotatable cylinder, a shaft carried by the cylinder, aturning-tool mounted upon the shaft, means whereby the rotation of thecylinder shall effect a partial rotation of the shaft and means to holdthe shaft stationary when the tool is in working position, substantiallyas described.

25. A rotatable device, mechanism to reciprocate the device, a shaftcarried by said device, a turning-tool upon said shaft, agrinding-wheel, and means to withdraw the reciprocatory mechanism fromworking position and to withdraw the grinding -wheel from workingposition before said device is rotated, substantially as described.

26. A notatable device, mechanism to reciprocate the device, a shaftcarried by said device, a turning-tool upon said shaft, agrinding-wheel, means to retract the reciprocatory mechanism fromWorking position and to catory mechanism begins to advance, subwithdrawthe grinding-Wheel from Working stantially as described. 1o positionbefore said device is rotated, said In testimony whereof I sign thisspecificagrinding-Wheel being Withdrawn from Worktion in the presence oftwo Witnesses.

ing position at or near the limit of the re- -WILLIAM ALLEN PENDRY.tracting movement of the reciprocatory mech- Vitnesses: anism, and meansto restore the grinding- N. S. WRIGHT,

wheel to Working position when the reciproi MARY HICKEY.

